-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1
Vikram Dhillon wrote: > On Wed, Mar 31, 2010 at 06:09:40PM -0400, Rafi Rubin wrote: >> -----BEGIN PGP SIGNED MESSAGE----- >> Hash: SHA1 >> >> Just an FYI, Stéphane and I have been seeing an odd behavior where the n-trig >> hardware stops sending events. The devices look like they should be >> functioning >> normally and just show no sign of activity (no events coming down from the >> usb >> device). >> >> I've seen this behavior twice now, the first time just after changing the >> firmware, and it didn't register, and a second time just yesterday. I have >> not >> had a chance to figure out how to encourage it to fail more regularly. >> >> Stéphane has been seeing it more regularly since a firmware update on his HP >> last week. Hopefully its deterministic enough to identify the source and a >> solution quickly. >> >> >> We just want you to be aware there is a potential problem. >> >> >> On a side note we are both wondering if there is (and where to find) a >> wiki/table of known hardware and its characteristics (physical/supported >> features, stability testing status, etc). >> >> Rafi > > Thanks for the update on this Rafi, I don't have a multi-touch (yet) but I > have seen some similar behaviour on a regular touchpad lately. I wonder if > similar problems are occuring on both architectures. It seems to be like a > hardware interrupt (the thing responsible for sending the x,y coordinates > after some z seconds) is unable to send those through the buffer. But without > the architecture its not possible to say if that's exactly it. What brand/type of touchpad do you have, and is it serial or usb? I've tried unloading a number of modules and unbinding the usb device, then binding and loading. That does not fix the stuck behavior. I would think that should have cleared most buffers. Next time I will also try unloading and resetting the usb module and hosts. I also want to try some of signals that the windows driver sends it during reset and mode changes. > About the wiki that you were talking about, there are a couple of wikis on > different hardwares that are present but none on the current state of how > they work, one of the ways I can think of collecting more info. would be > checking mailing lists like this one. I will look into opensolaris and > freebsd side to see if I get anything useful. For now I'm mostly interested in picking a good way to present our observations going forward. Also whatever testing pages we have for QA should point to whatever database of support status is most appropriate. Rafi -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAkuz4O8ACgkQwuRiAT9o609CTgCg9ub166r/LF61haZSsFvMxvxr HZgAnjNyGvB3JizpWlf/AsAL3l0e/cs0 =4r1m -----END PGP SIGNATURE----- _______________________________________________ Mailing list: https://launchpad.net/~multi-touch-dev Post to : [email protected] Unsubscribe : https://launchpad.net/~multi-touch-dev More help : https://help.launchpad.net/ListHelp
